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Datasheet > 电源电路 > 开关式稳压器或控制器> LM2575T-5.0/LF03
LM2575T-5.0/LF03 PDF预览

LM2575T-5.0/LF03

更新时间： 2024-11-15 12:09:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器局域网
页数 文件大小 规格书
44页 6007K
描述
LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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LM2575T-5.0/LF03 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：TO-220, 5 PIN
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.59Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：40 V
最小输入电压：8 V标称输入电压：12 V
JESD-30 代码：R-XZFM-T5JESD-609代码：e3
湿度敏感等级：1功能数量：1
端子数量：5最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：3.2 A
最大输出电压：37 V最小输出电压：3.3 V
标称输出电压：5 V封装主体材料：UNSPECIFIED
封装代码：ZFM封装形状：RECTANGULAR
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：NOT APPLICABLE
表面贴装：NO切换器配置：BUCK
最大切换频率：63 kHz温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：THROUGH-HOLE
端子位置：ZIG-ZAG处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

LM2575T-5.0/LF03 数据手册

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LM1575, LM2575-N, LM2575HV  
www.ti.com  
SNVS106E –MAY 1999–REVISED APRIL 2013  
®
LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator  
Check for Samples: LM1575, LM2575-N, LM2575HV  
1
FEATURES  
DESCRIPTION  
The LM2575 series of regulators are monolithic  
integrated circuits that provide all the active functions  
for a step-down (buck) switching regulator, capable of  
driving a 1A load with excellent line and load  
regulation. These devices are available in fixed output  
voltages of 3.3V, 5V, 12V, 15V, and an adjustable  
output version.  
23  
•
3.3V, 5V, 12V, 15V, and Adjustable Output  
Versions  
•
Adjustable Version Output Voltage Range,  
–
1.23V to 37V (57V for HV Version) ±4%  
Max Over  
–
Line and Load Conditions  
Requiring  
a
minimum number of external  
•
•
Specified 1A Output Current  
components, these regulators are simple to use and  
include internal frequency compensation and a fixed-  
frequency oscillator.  
Wide Input Voltage Range, 40V up to 60V for  
HV Version  
•
•
•
Requires Only 4 External Components  
The LM2575 series offers  
a
high-efficiency  
52 kHz Fixed Frequency Internal Oscillator  
replacement for popular three-terminal linear  
regulators. It substantially reduces the size of the  
heat sink, and in many cases no heat sink is  
required.  
TTL Shutdown Capability, Low Power Standby  
Mode  
•
•
•
High Efficiency  
A standard series of inductors optimized for use with  
the LM2575 are available from several different  
manufacturers. This feature greatly simplifies the  
design of switch-mode power supplies.  
Uses Readily Available Standard Inductors  
Thermal Shutdown and Current Limit  
Protection  
P+ Product Enhancement Tested  
•
Other features include a specified ±4% tolerance on  
output voltage within specified input voltages and  
output load conditions, and ±10% on the oscillator  
frequency. External shutdown is included, featuring  
50 μA (typical) standby current. The output switch  
includes cycle-by-cycle current limiting, as well as  
thermal shutdown for full protection under fault  
conditions.  
APPLICATIONS  
•
Simple High-Efficiency Step-Down (Buck)  
Regulator  
•
•
•
Efficient Pre-Regulator for Linear Regulators  
On-Card Switching Regulators  
Positive to Negative Converter (Buck-Boost)  
Typical Application  
(Fixed Output Voltage Versions)  
Pin numbers are for the TO-220 package.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
SIMPLE SWITCHER is a registered trademark of Texas Instruments.  
2
3
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1999–2013, Texas Instruments Incorporated  
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LM2575T-5.0/LF03 替代型号

型号 品牌 替代类型 描述 数据表
LM2575T-5.0/LB03 TI

类似代替

 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575TV-5G ONSEMI

功能相似

 1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator

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